MSP430G2744 Datasheet, PDF (26/73 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2744
MSP430G2544
MSP430G2444
SLAS892A – MARCH 2013 – REVISED APRIL 2013
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POR and BOR⁽¹⁾⁽²⁾
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
V_CC(start)
V_{(B_IT-)}
V_{hys(B_IT-)}
t_d(BOR)
t_(reset)
PARAMETER
See Figure 8
See Figure 8 through Figure 10
See Figure 8
See Figure 8
Pulse duration needed at RST/NMI pin to
accepted reset internally
TEST CONDITIONS
dV_CC /dt ≤ 3 V/s
dV_CC /dt ≤ 3 V/s
dV_CC /dt ≤ 3 V/s
V_CC
2.2 V
MIN
TYP
0.7 ×
V_{(B_IT-)}
1.35
140
2000
2
MAX UNIT
V
V
mV
µs
µs
(1) The current consumption of the brownout module is already included in the I_CC current consumption data. The voltage level V_{(B_IT-)} +
V_{hys(B_IT-)} is ≤ 1.8 V.
(2) During power up, the CPU begins code execution following a period of t_d(BOR) after V_CC = V_{(B_IT-)} + V_{hys(B_IT-)} . The default DCO settings
must not be changed until V_CC ≥ V_CC(min), where V_CC(min) is the minimum supply voltage for the desired operating frequency.
VCC
Vhys(B_IT−)
V(B_IT−)
V_{CC(s t ar t )}
1
0
t _d(BOR)
Figure 8. POR and BOR vs Supply Voltage
26
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